* Ath10k on XPS 9380 regularly disconnects
@ 2019-03-19 5:35 Kai-Heng Feng
2019-03-21 17:05 ` Kalle Valo
0 siblings, 1 reply; 6+ messages in thread
From: Kai-Heng Feng @ 2019-03-19 5:35 UTC (permalink / raw)
To: Kalle Valo; +Cc: Anthony Wong, linux-wireless, Linux Netdev List, linux-kernel
Hi Kalle,
There’s an issue that ath10k disconnects at regular basis [1], on Linux
kernel 4.18.
Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
Is there already a fix in upstream kernel?
[1] https://bugs.launchpad.net/bugs/1818881
Kai-Heng
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Ath10k on XPS 9380 regularly disconnects
2019-03-19 5:35 Ath10k on XPS 9380 regularly disconnects Kai-Heng Feng
@ 2019-03-21 17:05 ` Kalle Valo
2019-03-22 15:43 ` Kai-Heng Feng
0 siblings, 1 reply; 6+ messages in thread
From: Kalle Valo @ 2019-03-21 17:05 UTC (permalink / raw)
To: Kai-Heng Feng; +Cc: Anthony Wong, linux-wireless, ath10k
+ ath10k list
- netdev & linux-kernel
Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
> There’s an issue that ath10k disconnects at regular basis [1], on
> Linux kernel 4.18.
>
> Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
>
> Is there already a fix in upstream kernel?
I'm not aware of any fixes related to this. Is this a regression? In
other words, is there a known version of ath10k or firmware which didn't
have this problem?
> [1] https://bugs.launchpad.net/bugs/1818881
Relevant information from dmesg:
[ 19.346810] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:143a
[ 19.346812] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 19.347136] ath10k_pci 0000:02:00.0: firmware ver WLAN.RM.4.4.1-00132-QCARMSWP-1 api 6 features wowlan,ignore-otp,mfp crc32 79f4db86
[...]
[77451.338339] WARNING: CPU: 4 PID: 0 at /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46 ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
[...]
[81254.857667] WARNING: CPU: 1 PID: 0 at /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46 ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
[...]
[81390.186167] WARNING: CPU: 2 PID: 0 at /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46 ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
--
Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Ath10k on XPS 9380 regularly disconnects
2019-03-21 17:05 ` Kalle Valo
@ 2019-03-22 15:43 ` Kai-Heng Feng
2019-04-01 8:03 ` Kai-Heng Feng
0 siblings, 1 reply; 6+ messages in thread
From: Kai-Heng Feng @ 2019-03-22 15:43 UTC (permalink / raw)
To: Kalle Valo; +Cc: Anthony Wong, Stephan Fabel, linux-wireless, ath10k
at 01:05, Kalle Valo <kvalo@codeaurora.org> wrote:
> + ath10k list
> - netdev & linux-kernel
>
> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
>
>> There’s an issue that ath10k disconnects at regular basis [1], on
>> Linux kernel 4.18.
>>
>> Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
>>
>> Is there already a fix in upstream kernel?
>
> I'm not aware of any fixes related to this. Is this a regression? In
> other words, is there a known version of ath10k or firmware which didn't
> have this problem?
We know this issue happen on kernel v4.15 and v4.18, but kernels before
v4.15 were not tested.
The issue happens with Google Mesh, which has 802.11ac capability.
I haven’t been able to reproduce the issue with an 802.11n router (yet).
Kai-Heng
>
>> [1] https://bugs.launchpad.net/bugs/1818881
>
> Relevant information from dmesg:
>
> [ 19.346810] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000
> chip_id 0x00340aff sub 1a56:143a
> [ 19.346812] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing
> 1 dfs 0 testmode 0
> [ 19.347136] ath10k_pci 0000:02:00.0: firmware ver
> WLAN.RM.4.4.1-00132-QCARMSWP-1 api 6 features wowlan,ignore-otp,mfp crc32
> 79f4db86
>
> [...]
>
> [77451.338339] WARNING: CPU: 4 PID: 0 at
> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>
> [...]
>
> [81254.857667] WARNING: CPU: 1 PID: 0 at
> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>
> [...]
>
> [81390.186167] WARNING: CPU: 2 PID: 0 at
> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>
> --
> Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Ath10k on XPS 9380 regularly disconnects
2019-03-22 15:43 ` Kai-Heng Feng
@ 2019-04-01 8:03 ` Kai-Heng Feng
2019-04-01 8:37 ` Kalle Valo
0 siblings, 1 reply; 6+ messages in thread
From: Kai-Heng Feng @ 2019-04-01 8:03 UTC (permalink / raw)
To: Kalle Valo; +Cc: Anthony Wong, Stephan Fabel, linux-wireless, ath10k
Hi Kalle,
at 23:43, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
> at 01:05, Kalle Valo <kvalo@codeaurora.org> wrote:
>
>> + ath10k list
>> - netdev & linux-kernel
>>
>> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
>>
>>> There’s an issue that ath10k disconnects at regular basis [1], on
>>> Linux kernel 4.18.
>>>
>>> Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
>>>
>>> Is there already a fix in upstream kernel?
>>
>> I'm not aware of any fixes related to this. Is this a regression? In
>> other words, is there a known version of ath10k or firmware which didn't
>> have this problem?
>
> We know this issue happen on kernel v4.15 and v4.18, but kernels before
> v4.15 were not tested.
>
> The issue happens with Google Mesh, which has 802.11ac capability.
>
> I haven’t been able to reproduce the issue with an 802.11n router (yet).
Do I need a special WiFi router which support RX reorder to reproduce the
issue?
It's introduced by commit c545070e404b (“ath10k: implement rx reorder
support”).
Kai-Heng
>
> Kai-Heng
>
>>> [1] https://bugs.launchpad.net/bugs/1818881
>>
>> Relevant information from dmesg:
>>
>> [ 19.346810] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000
>> chip_id 0x00340aff sub 1a56:143a
>> [ 19.346812] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1
>> tracing 1 dfs 0 testmode 0
>> [ 19.347136] ath10k_pci 0000:02:00.0: firmware ver
>> WLAN.RM.4.4.1-00132-QCARMSWP-1 api 6 features wowlan,ignore-otp,mfp
>> crc32 79f4db86
>>
>> [...]
>>
>> [77451.338339] WARNING: CPU: 4 PID: 0 at
>> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
>> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>>
>> [...]
>>
>> [81254.857667] WARNING: CPU: 1 PID: 0 at
>> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
>> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>>
>> [...]
>>
>> [81390.186167] WARNING: CPU: 2 PID: 0 at
>> /build/linux-hwe-9KJ07q/linux-hwe-4.18.0/drivers/net/wireless/ath/ath10k/htt_rx.c:46
>> ath10k_htt_rx_pop_paddr.isra.29+0xd9/0xf0 [ath10k_core]
>>
>> --
>> Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Ath10k on XPS 9380 regularly disconnects
2019-04-01 8:03 ` Kai-Heng Feng
@ 2019-04-01 8:37 ` Kalle Valo
2019-04-01 9:10 ` Kai-Heng Feng
0 siblings, 1 reply; 6+ messages in thread
From: Kalle Valo @ 2019-04-01 8:37 UTC (permalink / raw)
To: Kai-Heng Feng; +Cc: Anthony Wong, Stephan Fabel, linux-wireless, ath10k
Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
> at 23:43, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>
>> at 01:05, Kalle Valo <kvalo@codeaurora.org> wrote:
>>
>>> + ath10k list
>>> - netdev & linux-kernel
>>>
>>> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
>>>
>>>> There’s an issue that ath10k disconnects at regular basis [1], on
>>>> Linux kernel 4.18.
>>>>
>>>> Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
>>>>
>>>> Is there already a fix in upstream kernel?
>>>
>>> I'm not aware of any fixes related to this. Is this a regression? In
>>> other words, is there a known version of ath10k or firmware which didn't
>>> have this problem?
>>
>> We know this issue happen on kernel v4.15 and v4.18, but kernels
>> before v4.15 were not tested.
>>
>> The issue happens with Google Mesh, which has 802.11ac capability.
>>
>> I haven’t been able to reproduce the issue with an 802.11n router (yet).
>
> Do I need a special WiFi router which support RX reorder to reproduce
> the issue?
>
> It's introduced by commit c545070e404b (“ath10k: implement rx reorder
> support”).
I don't understand your question at all.
--
Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Ath10k on XPS 9380 regularly disconnects
2019-04-01 8:37 ` Kalle Valo
@ 2019-04-01 9:10 ` Kai-Heng Feng
0 siblings, 0 replies; 6+ messages in thread
From: Kai-Heng Feng @ 2019-04-01 9:10 UTC (permalink / raw)
To: Kalle Valo; +Cc: Anthony Wong, Stephan Fabel, linux-wireless, ath10k
at 16:37, Kalle Valo <kvalo@codeaurora.org> wrote:
> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
>
>> at 23:43, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>>
>>> at 01:05, Kalle Valo <kvalo@codeaurora.org> wrote:
>>>
>>>> + ath10k list
>>>> - netdev & linux-kernel
>>>>
>>>> Kai-Heng Feng <kai.heng.feng@canonical.com> writes:
>>>>
>>>>> There’s an issue that ath10k disconnects at regular basis [1], on
>>>>> Linux kernel 4.18.
>>>>>
>>>>> Unfortunately I can’t reproduce the issue on XPS 9380 at my hand.
>>>>>
>>>>> Is there already a fix in upstream kernel?
>>>>
>>>> I'm not aware of any fixes related to this. Is this a regression? In
>>>> other words, is there a known version of ath10k or firmware which didn't
>>>> have this problem?
>>>
>>> We know this issue happen on kernel v4.15 and v4.18, but kernels
>>> before v4.15 were not tested.
>>>
>>> The issue happens with Google Mesh, which has 802.11ac capability.
>>>
>>> I haven’t been able to reproduce the issue with an 802.11n router (yet).
>>
>> Do I need a special WiFi router which support RX reorder to reproduce
>> the issue?
>>
>> It's introduced by commit c545070e404b (“ath10k: implement rx reorder
>> support”).
>
> I don't understand your question at all.
As far as I understand, the issue "failed to pop paddr list: -2” happens
because ath10k_htt_rx_pop_paddr() fails to find skb in skb_table, hence
trigger the warning.
Those function are introduced by commit "ath10k: implement rx reorder
support”.
Since I’ve never seen such issue on my WiFi routers, while it happens to
Stephan frequently, so I want to know if the “RX reorder support” is a
feature that’s only supported by certain WiFi routers.
Kai-Heng
>
> --
> Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-04-01 9:10 UTC | newest]
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2019-03-19 5:35 Ath10k on XPS 9380 regularly disconnects Kai-Heng Feng
2019-03-21 17:05 ` Kalle Valo
2019-03-22 15:43 ` Kai-Heng Feng
2019-04-01 8:03 ` Kai-Heng Feng
2019-04-01 8:37 ` Kalle Valo
2019-04-01 9:10 ` Kai-Heng Feng
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